Depressed & annoyed

16 weeks exactly today. My emotions are still all Over the place which I thought was supposed to end in the 2nd trimester. Literally I’ll be fine and happy for a few hours and then bam I’m depressed, agitated upset and everything is annoying me. I literally feel like a toddler right now bc I can’t even help it. I’m so annoyed and upset rn I just wanna curl up in a ball and disappear into a dark hole. Feel like I’m slowly losing my mind. I’m pregnant with a girl- don’t know if that has anything to do with it.